Results 51 to 60 of about 33,488 (315)

Adaptive total energy shaping of a class of manipulators

open access: yesIET Control Theory & Applications
Point‐to‐point control of underactuated mechanical systems is a challenging problem, especially if some of the system's parameters are uncertain. A popular method to stabilize underactuated manipulators is total energy shaping, in which a new Hamiltonian
M. Reza J. Harandi, Hamid D. Taghirad
doaj   +1 more source

Feeling manipulated: cytomegalovirus immune manipulation [PDF]

open access: yesVirology Journal, 2009
No one likes to feel like they have been manipulated, but in the case of cytomegalovirus (CMV) immune manipulation, we do not really have much choice. Whether you call it CMV immune modulation, manipulation, or evasion, the bottom line is that CMV alters the immune response in such a way to allow the establishment of latency with lifelong shedding ...
Sparer Tim E, Miller-Kittrell Mindy
openaire   +3 more sources

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Parallel Manipulators [PDF]

open access: yes, 2008
Parallel manipulators are characterized as having closed-loop kinematic chains. Compared to serial manipulators, which have open-ended structure, parallel manipulators have many advantages in terms of accuracy, rigidity and ability to manipulate heavy ...

core   +2 more sources

Neural Network Direct Control with Online Learning for Shape Memory Alloy Manipulators

open access: yesSensors, 2019
New actuators and materials are constantly incorporated into industrial processes, and additional challenges are posed by their complex behavior. Nonlinear hysteresis is commonly found in shape memory alloys, and the inclusion of a suitable hysteresis ...
Alfonso Gómez-Espinosa   +4 more
doaj   +1 more source

Calculation of the force and kinematic parameters of the transfer mechanism based on a twisted arm chain

open access: yesAdvanced Engineering Research, 2022
Introduction. The paper presents a brief kinematic analysis, as well as the application of D'Alembert's principle to finding the relationship between the force parameters in the transmission mechanism of a robotic manipulator constructed from a twisted ...
I. R. Bondarenko   +3 more
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho   +7 more
wiley   +1 more source

Avaliação das condições microbiológicas em unidades de alimentação e nutrição Evaluation of microbiological conditions in food service stablishiments

open access: yesCiência e Agrotecnologia, 2003
O presente trabalho é referente a 17 visitas técnicas realizadas em 12 unidades de alimentação e nutrição, cujas produções variam de 1.000 a 4.000 refeições/dia.
Nélio José de Andrade   +2 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

Velocity Estimation of Robot Manipulators: An Experimental Comparison

open access: yesIEEE Open Journal of Control Systems, 2023
Accurate velocity information is often essential to the control of robot manipulators, especially for precise tracking of fast trajectories. However, joint velocities are rarely directly measured and instead estimated to save costs. While many approaches
S. B. Liu   +2 more
doaj   +1 more source

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